Authors: Lucas M et al.
Anesthesia & Analgesia 142(4):653–663, April 2026
This large retrospective cohort study evaluated outcomes in 25,979 adult patients undergoing major noncardiac surgery across two German hospitals, comparing three care models: transfusion-free blood management, patient blood management (PBM), and no PBM.
The primary comparison focused on nontransfusable patients (managed with transfusion-free strategies) versus transfusable patients. The secondary analysis compared transfusable patients receiving PBM versus those receiving no PBM.
The findings are striking. Patients managed with transfusion-free blood management had significantly better outcomes across multiple domains. Mortality was dramatically lower (OR 0.33), along with substantial reductions in renal complications (OR 0.40), respiratory complications (OR 0.43), and hospital readmissions (OR 0.54). Length of stay was also shorter. Notably, there were no myocardial infarctions reported in the transfusion-free group, compared to a small but measurable incidence in transfusable patients. Surgical site complications were similar between groups, suggesting that avoiding transfusion did not increase infection risk.
The secondary analysis reinforces the same theme. Among transfusable patients, those managed with PBM had improved outcomes compared to those without PBM. Mortality, surgical site complications, renal complications, and respiratory complications were all significantly lower. PBM was also associated with reduced transfusion rates, fewer units transfused, and lower estimated blood loss. Length of stay was shorter as well. Interestingly, readmission rates were higher in the PBM group, which may reflect earlier discharge or differences in follow-up patterns.
Overall, the study strongly supports the concept that proactively managing anemia, minimizing blood loss, and avoiding transfusion when possible leads to better surgical outcomes. The consistency of benefit across both transfusion-free and PBM groups suggests that the underlying driver is not simply avoiding transfusion, but implementing a comprehensive perioperative blood management strategy.
Key Points
• Transfusion-free blood management was associated with markedly lower mortality and complications
• PBM significantly improved outcomes compared to no PBM in transfusable patients
• Avoiding or minimizing transfusion did not increase surgical site complications
• Reduced transfusion exposure correlated with lower blood loss and fewer complications
• Shorter hospital stays were seen in both transfusion-free and PBM groups
• Higher readmissions in PBM patients may reflect earlier discharge or system factors
• Comprehensive blood management—not just transfusion avoidance—is the key driver of improved outcomes
Thank you to Anesthesia & Analgesia for allowing us to summarize and share these important findings.